The Faculty of Mathematics and Natural Sciences: Search
Now showing items 271-280 of 404
Experimental and theoretical studies of mononuclear high-valent nitrido-iron and oxo-iron complexes
(2016-05-12)
Nitrido-iron and oxo-iron complexes are important species in manifold biological and industrial processes. While nitrido-iron complexes are intermediates in biological and industrial nitrogen fixation, oxo-iron complexes ...
The Pixel-TPC: A feasibility study
(2016-05-17)
The Time Projection Chamber (TPC) as a detector system in particle physics offers continuous tracking with low material budget and therefore is considered in the design of the International Large Detector (ILD) at the ...
Dynamik und Korrelationen eines Bose-Einstein-Kondensats aus Licht
(2016-02-02)
Einer der bemerkenswertesten Aspekte der Bose-Einstein-Kondensation ist die natürliche Ausprägung von Korrelationen und langreichweitiger Ordnung in einem System, welches sich im thermischen Gleichgewicht befindet. ...
Search for Flavour Changing Neutral Currents in Single Top-Quark Production at √s = 7 TeV with the ATLAS Detector
(2013-04-05)
This thesis represents the search for single top-quark production through flavour changing neutral currents using data collected by the ATLAS detector in 2011, at a centre-of-mass energy of √s = 7 TeV, corresponding to an ......
Measuring the Gap and Investigating Non-equilibrium in the BEC-BCS Crossover
(2017-09-15)
This thesis presents a new Bose-Fermi mixture quantum gas experiment that has been used to measure the gap over the BEC-BCS crossover and investigate the non-equilibrium dynamics of a superfluid in response to a quench of ...
Spindynamik in Elektronensynchrotronen
(2017-09-29)
Um unser Verständnis des Aufbaus der Materie voranzutreiben sind Experimente mit hochenergetischen Teilchen erforderlich, bei denen alle Eingangsparameter bekannt sind und variiert werden können. Zu diesen gehört auch die ......
Spin Dynamics in Electron Synchrotrons
Providing spin polarized particle beams with circular accelerators requires the consideration of depolarizing resonances which may significantly reduce the ......
Spin Dynamics in Electron Synchrotrons
Providing spin polarized particle beams with circular accelerators requires the consideration of depolarizing resonances which may significantly reduce the ......
Kalorimetrie und Phasenkorrelationen eines zweidimensionalen Photonengases
(2017-08-10)
Phasenübergänge spielen in der Physik eine bedeutende Rolle. Es entspricht unserer Alltagserfahrung, dass Materie ihre Eigenschaften in Abhängigkeit von äußeren Parametern wie Volumen, Druck oder Temperatur bei Überschreiten ...
Searches for Neutrinos from Supernovae Using Cherenkov In-Ice Detectors
(2017-05-15)
Supernovae mark the violent death of massive stars. They are among the most energetic processes known to exist in the Universe. Neutrinos play crucial roles in supernova processes. Besides the low-energy neutrinos emitted ...
Quantum Phase Transitions in Multi-Impurity and Lattice Kondo Systems
(2017-04-25)
The main purpose of this dissertation is to provide a detailed development of a self-consistent perturbative renormalization group (RG) method to investigate the quantum phases and quantum phase transitions of multi-impurity ...
Massive stars on the main sequence
(2017-03-10)
Massive stars have a strong influence on their environment by chemical enrichment of the surrounding interstellar medium due to strong stellar winds. The influence of mass loss and rotation on the main-sequence evolution ...